Here you can see a comparison of Apple iPhone, iPad and iPod sales from the first quarter of 2006 to the company's latest financial quarter. It has been suggested that the development of the iPhone has led to the cannibalization of the iPod, and that Apple is effectively making one of their own products obsolete. As can be seen in the graph, quarterly iPod sales have slightly decreased as iPhone and iPad sales have increased.
Apple product sales - additional information
Since the introduction of the iPhone in June 2007, sales of the iPod have dramatically decreased from over 10 million units per quarter on average to less than 3 million units in the third quarter of 2014. In contrast, sales of the iPhone have increased rapidly, with over 150 million units sold worldwide in 2013 and over 50 million units sold in the first quarter of 2014 alone. In March 2014, sales of the iPhone brand reached 500 million devices and as of September 2014 there are eight generations of iPhone models, each accompanied by one of the eight major releases of Apple’s operating system, iOS. This operating system had a global market share of 15.2 percent in the first quarter of 2014, making it the second most popular operating system in the world behind only the Android OS.
Apple released its first iPad in April 2010, with the two most recent models, the iPad Air 2 and the iPad Mini, announced in October 2014. There have been five versions of the iPad to date and as of June 2014, there have been over 200 million iPads sold worldwide since its release. In the United States there are forecast to be 85 million iPad users in 2016, an increase from the 11.5 million in 2010. At the beginning of 2012, the iPad was the dominant force in the global tablet market with a market share of 58.1 percent. This share decreased to 26.9 percent in the second quarter of 2014 as Apple faced competition from Google and Samsung. The iPad nevertheless remains a major product for Apple with unit sales of 13 million in the third quarter of 2014, generating revenue of almost 6 billion U.S. dollars.